|MB.35 Passe Partout|
|Primary user||French Navy|
The Besson MB.35 Passe Partout was a French two-seat spotter and observation floatplane, designed by Besson. It was intended to serve on Surcouf a very large (for its day) submarine, stowed in a sealed hangar. The first aircraft was destroyed during trials and the second was converted to the MB.41, prototype of the Besson MB.411, which did serve on Surcouf.
- Crew: 2
- Length: 7.3 m (23 ft 11 in) wings spread
- Wingspan: 9.85 m (32 ft 4 in) wings spread
- Width: 2.2 m (7 ft 3 in) wings folded for submarine stowage
- Length folded: 6.5 m (21 ft)
- Height: 2.53 m (8 ft 4 in)
- Wing area: 16.5 m2 (178 sq ft)
- Empty weight: 540 kg (1,190 lb)
- Gross weight: 765 kg (1,687 lb)
- Powerplant: 1 × Salmson 9AC 9-cylinder air-cooled radial piston engine, 89 kW (120 hp)
- Propellers: 2-bladed fixed pitch propeller
- Maximum speed: 160 km/h (99 mph; 86 kn)
- Range: 346 km (215 mi; 187 nmi)
- Ferry range: 644 km (400 mi; 348 nmi) with overload tank in rear cockpit
- Service ceiling: 4,800 m (15,700 ft)
- Wing loading: 47.5 kg/m2 (9.7 lb/sq ft)
- Power/mass: 0.1174 kW/kg (.0714 hp/lb)
|Wikimedia Commons has media related to Besson MB.35.|
- Sharpe, Michael (2000). Biplanes, Triplanes, and Seaplanes. London: Friedman/Fairfax Books. p. 80. ISBN 1-58663-300-7.
- Heinemann, with a foreword by Ed.; Treadwell, Terry C. (1985). Submarines with wings : the past, present and future of aircraft-carrying submarines. London: Conway Maritime Press. pp. 75–83, 113. ISBN 0851773699.
- Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. pp. 113c–114c.